<CategoryAttribute("Common Properties")>
Public Property IsDocumentChanged As Boolean

Dim instance As FlowDocumentViewerBase
Dim value As Boolean
 
instance.IsDocumentChanged = value
 
value = instance.IsDocumentChanged

[CategoryAttribute("Common Properties")]
public bool IsDocumentChanged {get; set;}

public read-write property IsDocumentChanged: Boolean; 

CategoryAttribute("Common Properties")
public function get,set IsDocumentChanged : boolean

[CategoryAttribute("Common Properties")]
public: __property bool get_IsDocumentChanged();
public: __property void set_IsDocumentChanged( 
   bool value
);

[CategoryAttribute("Common Properties")]
public:
property bool IsDocumentChanged {
   bool get();
   void set (    bool value);
}

private void ChangeDocumentStructure()
{
    FlowDocument doc = this.Viewer1.Document;

    Span span = new Span();
    Run run = new Run("Hello World");
    span.Inlines.Add(run);

    Paragraph p = new Paragraph();
    p.Inlines.Add(span);

    doc.Blocks.Insert(0, p);
    this.Viewer1.IsDocumentChanged = true;
}